Fix the cedilla test, fix the engine to treat input string as UTF-8 because unicode in PHP is a miserable experience. (#403)

Author: SecondeJK

phpunit.xml.dist

@@ -23,6 +23,9 @@
     <testsuite name="verify2">
       <directory>test/Verify2</directory>
     </testsuite>
+    <testsuite name="messages">
+      <directory>test/Messages</directory>
+    </testsuite>
   </testsuites>
   <php>
         <ini name='error_reporting' value='E_ALL' />

src/SMS/Message/SMS.php

@@ -32,7 +32,7 @@ public function __construct(string $to, string $from, protected string $message,
 
     public static function isGsm7(string $message): bool
     {
-        $fullPattern = "/\A[" . preg_quote(self::GSM_7_CHARSET, '/') . "]*\z/";
+        $fullPattern = "/\A[" . preg_quote(self::GSM_7_CHARSET, '/') . "]*\z/u";
         return (bool)preg_match($fullPattern, $message);
     }
 

test/SMS/Message/SMSTest.php

@@ -185,7 +185,7 @@ public function unicodeStringDataProvider(): array
             ['This is a text with some tasty characters: [test]', true],
             ['This is also a GSM7 text', true],
             ['This is a Çotcha', true],
-            ['This is also a çotcha', true],
+            ['This is also a çotcha', false],
             ['日本語でボナージュ', false],
         ];
     }